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CoreOS Clair vs Red Hat Advanced Cluster Security for Kubernetes comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Sep 16, 2024

Review summaries and opinions

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Categories and Ranking

Qualys TotalCloud
Sponsored
Ranking in Container Security
11th
Average Rating
8.6
Reviews Sentiment
7.1
Number of Reviews
46
Ranking in other categories
Vulnerability Management (11th), Cloud Workload Protection Platforms (CWPP) (8th), Cloud Security Posture Management (CSPM) (8th), SaaS Security Posture Management (SSPM) (2nd), Cloud-Native Application Protection Platforms (CNAPP) (7th)
CoreOS Clair
Ranking in Container Security
38th
Average Rating
8.6
Reviews Sentiment
7.6
Number of Reviews
2
Ranking in other categories
No ranking in other categories
Red Hat Advanced Cluster Se...
Ranking in Container Security
30th
Average Rating
8.2
Reviews Sentiment
7.5
Number of Reviews
12
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of September 2026, in the Container Security category, the mindshare of Qualys TotalCloud is 1.7%, up from 1.1% compared to the previous year. The mindshare of CoreOS Clair is 0.7%, up from 0.5% compared to the previous year. The mindshare of Red Hat Advanced Cluster Security for Kubernetes is 1.4%, down from 2.1% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Container Security Mindshare Distribution
ProductMindshare (%)
Qualys TotalCloud1.7%
Red Hat Advanced Cluster Security for Kubernetes1.4%
CoreOS Clair0.7%
Other96.2%
Container Security
 

Featured Reviews

reviewer2859021 - PeerSpot reviewer
Sr Security Engineer at a tech vendor with 5,001-10,000 employees
Risk-based triage has transformed container security and now prioritizes high-impact threats
The best features Qualys TotalCloud offers currently include managing cloud infrastructure and container security while facing major challenges such as alert fatigue. Traditional vulnerability scanners flag hundreds of CVEs on short-lived Kubernetes containers, some of which have no internet exposure or are gone before we can even triage them. I leverage Qualys TotalCloud to move beyond static CVSS. I use it to implement runtime exposure, correlation risk reprioritization, and shift-left integration. This notifies developers to fix a base image upstream rather than patching live ephemeral instances. In my work with cloud and container security, the biggest operational hurdle was alert fatigue. I use Qualys to shift left from static CVSS severity to context-aware risk prioritization. I correlated raw vulnerability data with real-time risk factors such as public network exposure, active runtime execution, or overly permissive IAM roles. This allows us to immediately drop the priority of isolated containers and escalate lower-severity CVEs that sit on an exposed, high-risk path. We can map these findings directly back to our CI/CD pipelines so developers can patch the root base images upstream. We have drastically cut down the signal-to-noise ratio, saved a lot of manual hours doing triage work, and ensured engineering effort goes directly towards high-impact risk reduction.
Felipe Giffu - PeerSpot reviewer
Red Hat Solution Architect at Seprol Computadores e Sistemas
An operational system, similar to Linux where you can run your applications inside containers
With CoreOS, you can run your applications inside containers. For example, if you have an application that needs to run on Linux, you can create and install a container. However, it's important to note that you don't install CoreOS inside a container; CoreOS is the host operating system that manages containers. When you mentioned using Nacula as part of your CI/CD pipeline, it means your application is deployed and managed automatically through the CI/CD process. Containers are used to deploy your application within this pipeline, but CoreOS does not run inside these containers. Instead, CoreOS is the base operating system that supports and manages these containers.
Daniel Stevens - PeerSpot reviewer
Software Engineer at Galley
Offers easy management and container connection with HTTPS, but the support needs to improve
I have experience with the solution's setup in Rio de Janeiro, Brazil and our company has assisted in the development of a cluster in a research department, but we didn't start from scratch because we have IT professionals who have installed Kubernetes across 12 nodes of a cluster and a new environment can be created for a new platform. I also had another setup experience of Red Hat Advanced Cluster Security for Kubernetes in Portugal where I had to implement the solution in a cluster of 22 computer servers, which was completed with assistance from the IT department of the company. The initial setup process of the solution can be considered as difficult. The setup process involves using the permissions, subnets and range of IPs, which makes it complex. Deploying Red Hat Advanced Cluster Security for Kubernetes takes around eight to ten hours for new clusters. The solution's deployment can be divided into three parts. The first part involves OpenStack, where the cluster's resources need to be identified. The second part involves virtualizing assets and identifying other physical assets, for which OpenStack, Kubernetes, or OpenShift are used. The third part of the deployment involves dividing the networks into subnetworks and implementing automation to deploy the microservices using Helm. The number of professionals required for the solution's deployment depends upon the presence of automated scripts. Ideally, two or three professionals are required to set up Red Hat Advanced Cluster Security for Kubernetes.

Quotes from Members

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Pros

"The most valuable feature is the consolidated information that it provides from various platforms."
"CSPM is currently the most used feature, and we are enjoying the new feature, FlexScan, which is valuable for Internet-facing VMs."
"If someone were to ask me to review Qualys TotalCloud, I would summarize it as an end-to-end solution for cloud security with visibility and governance-grade controls without needing to manage multiple disconnected tools."
"It is a cloud-native app that integrates with both IaaS and SaaS. It seamlessly integrates with other platforms."
"TotalCloud has been excellent in providing us with immediate access to all the products and features we need, such as CSPM, TruRisk Insights, and compliance reports, including CIS and HIPAA."
"Its dashboards are brilliant. It provides in-depth insights."
"Qualys TotalCloud provides unified vulnerability and threat assessment for IaaS and SaaS and a single prioritized view of risk, which helps reduce my workload by not having to combine multiple sources."
"Qualys TotalCloud has saved our time by giving us better asset visibility and risk-based prioritization, as it has reduced the time spent manually reviewing CVEs and deciding what to address first."
"CoreOS Clair's best feature is detection accuracy."
"With CoreOS, you can run your applications inside containers. For example, if you have an application that needs to run on Linux, you can create and install a container. However, it's important to note that you don't install CoreOS inside a container; CoreOS is the host operating system that manages containers."
"CoreOS Clair can be used by organizations of any size."
"The benefit of working with the solution is the fact that it's very straightforward...It is a perfectly stable product since the details are very accurate."
"It is easy to install and manage."
"The most valuable feature is the ability to share resources."
"The most valuable feature of the solution is its monitoring feature."
"The most beneficial security feature of the product revolves around the areas of vulnerability and configuration."
"Offers easy management with authentication and authorization features"
"I like virtualization and all those tools that come with OpenShift. I also like Advanced Cluster Management and the built-in security."
"Scalability-wise, I rate the solution a nine out of ten."
 

Cons

"Qualys TotalCloud needs to enhance its scanning capabilities in the IP domain, as it currently lacks the functionality to resolve IPs to their corresponding domain names."
"The downside is only in container security, but it has not been a long time since they introduced these models."
"One of the things that could be improved is the alerts. Qualys is a fantastic tool, especially with the TruRisk feature, but one challenge that most leaders face involves alert fatigue."
"To be honest, I would move out from this tool because it does not give a full view of vulnerability."
"The cloud licensing unit system is unclear, especially since "units" aren't well-defined."
"We encountered challenges identifying the correct resource category for certain items, such as those in containers or storage."
"There is room for improvement in vulnerability scanning, particularly for PaaS environments. Currently, Qualys does not have full access to these instances, which limits its effectiveness."
"Qualys' customer service provides quality answers, but the response time is long, even though it is within the SLA."
"It can be improved in its support response. They usually take up to seven days to resolve the issue."
"An area for improvement is that CoreOS Clair doesn't provide information about the location of vulnerabilities it detects."
"The solution's price could be better."
"The support and specifications need to be up to date for the cluster technologies"
"Red Hat is somewhat expensive."
"The testing process could be improved."
"The solution lacks features when compared to some of the competitors such as Prisma Cloud by Palo Alto Networks and has room for improvement."
"I do see that some features associated with the IAST part are not included in the tool, making it an area where improvements are required."
"The deprecation of APIs is a concern since the deprecation of APIs will cause issues for us every time we upgrade."
"The tool's command line and configuration are hard for us to understand and make deployment complex. It should also include zero trust, access control features and database connectivity."
 

Pricing and Cost Advice

"Qualys TotalCloud is expensive, but it offers a premier solution with no headaches."
"The cost is high, but it meets our organizational needs."
"The pricing for TotalCloud is attractive and competitive in the market. Given the features, especially the dashboard, I have no concerns regarding pricing."
"Qualys TotalCloud offers cost-effective licensing flexibility."
"Although Qualys TotalCloud is relatively expensive due to its unique automation features, its cost-effectiveness is rated an eight out of ten, with ten being the most costly."
"I am not sure about the pricing. From what I understand, it is a bit on the higher side, but I do not have the exact numbers."
"As a middle management member, I do not have direct pricing knowledge, but based on the knowledge from our meetings, its pricing is competitive."
"Qualys TotalCloud is cost-efficient and was selected for its value compared to other products."
"CoreOS Clair is open-source and free of charge."
"It's a costly solution"
"We purchase a yearly basis license for the solution."
"The price of Red Hat Advanced Cluster Security for Kubernetes is better than Palo Alto Prisma."
"Red Hat offers two pricing options for their solution: a separate price, and a bundled price under the OpenShift Platform Plus."
"The pricing model is moderate, meaning it is not very expensive."
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Top Industries

By visitors reading reviews
Comms Service Provider
16%
Outsourcing Company
12%
Manufacturing Company
11%
Financial Services Firm
10%
Financial Services Firm
18%
Comms Service Provider
14%
Performing Arts
12%
Government
11%
Financial Services Firm
27%
Outsourcing Company
8%
Manufacturing Company
6%
Transportation Company
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business14
Midsize Enterprise5
Large Enterprise34
No data available
By reviewers
Company SizeCount
Small Business6
Midsize Enterprise2
Large Enterprise4
 

Questions from the Community

What needs improvement with Qualys TotalCloud?
In terms of improvement, remediation still belongs to the cloud team, which is one of the issues we faced with Qualys...
What is your primary use case for Qualys TotalCloud?
My main use case for Qualys TotalCloud is regarding the cloud visibility that we were not having previously. Previous...
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Also Known As

Qualys TotalCloud with FlexScan
No data available
StackRox
 

Overview

 

Sample Customers

Information Not Available
eBay, Veritas, Verizon, SalesForce
City National Bank, U.S. Department of Homeland Security
Find out what your peers are saying about CoreOS Clair vs. Red Hat Advanced Cluster Security for Kubernetes and other solutions. Updated: September 2026.
913,683 professionals have used our research since 2012.